Theo van Doesburg, Study for Composition VIII (The Cow) (recto); Untitled (verso), c. 1917, Gouache, oil, and charcoal on paper (recto and verso), The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35396

Theo van Doesburg, Study for a Composition, 1923, Gouache and ink on tissue paper and pen and ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38206

Theo van Doesburg, Composition from Art of Today, Masters of Abstract Art (Art d'aujourd'hui, maîtres de l'art abstrait), Album I, 1953 (original executed in 1924), One from a portfolio of sixteen screenprint reproductions, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/31866

Jean (Hans) Arp, Mountain, Navel, Anchors, Table, 1925, Gouache on board with cutouts, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33669

Jean (Hans) Arp, Untitled (Automatic Drawing), 1917–18, dated 1916, Ink and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34023

Piet Mondrian, Lozenge Composition with Yellow, Black, Blue, Red, and Gray, 1921, Oil on canvas, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/109819

Jean (Hans) Arp, Untitled (Collage with Squares Arranged according to the Law of Chance), 1916–17, Torn-and-pasted paper and colored paper on colored paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37013

Jean (Hans) Arp, Plate (folio 4) from 10 Origin, 1942, Woodcut from a portfolio of six linoleum cuts, three woodcuts, and one lithograph, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/19631

Theo van Doesburg, Contra-construction in a Circle, c. 1923, Gouache, ink, and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33496

Theo van Doesburg, Composition, 1917, dated 1915, Charcoal on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37350

Theo van Doesburg, Study for Composition (The Cow), 1917, Pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33340

Theo van Doesburg, Design for a stained-glass window for Christian ULO School, Rehobôth te Drachten, 1922–23, Gouache and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38207

Jean (Hans) Arp, Constellation from Art of Today, Masters of Abstract Art (Art d'aujourd'hui, maîtres de l'art abstrait), Album I, 1953 (original executed in 1928), One from a portfolio of sixteen screenprint reproductions, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/31859

Piet Mondrian, Composition with Red, Yellow, and Blue, 1927, oil on canvas, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/143278

Jean (Hans) Arp, Untitled (Squares Arranged According to the Laws of Chance), 1917, Cut-and-pasted colored paper on colored paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37166

Piet Mondrian, Landzicht Farm: Compositional Study, c. 1905, Fabricated charcoal on blue laid paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/88464